Courtesy of Dolby Labs we've gotten hold of three copies of the Blu-ray to give away, so now's your chance to experience the film's overwhelming metallic assault from the comfort of your couch.

3 WINNERS will receive

1 Transformers: Dark of the Moon Blu-ray

To enter, register on the site (no anonymous entries, since we can't contact you with any accuracy) and then answer the following trivia question in the comments section below.

1) What is the name of the 3D camera system Bay used to shoot Transformers: Dark of the Moon?

We'll take entries until midnight (Eastern Time), October 12th, pick the winners at random from those who answer both questions correctly, and notify winners via e-mail by Friday, October 14. Good luck!